Device for mixing at least two media

Abstract

A device for mixing at least two media, in particular highly viscous media, having at least one mixing chamber, its volume in a mixer housing being variable by a movable plunger, and having at least one mixing tool. With the aid of an actuator, the mixing tool is insertable into the mixing chamber for mixing the media and is retractable from the mixing chamber following the mixing.

1 . A device for mixing at least two media, comprising: 
 a movable plunger;    at least one mixing chamber, its volume in a mixer housing being variable by a movable plunger;    an actuator; and    at least one mixing tool, the mixing tool with the aid of the actuator being insertable into the mixing chamber for mixing the media and being retractable from the mixing chamber following the mixing.    
   
   
       2 . The device according to  claim 1 , wherein the mixing tool is guidable into the mixing chamber through a corresponding opening in a wall bounding the mixing chamber.  
   
   
       3 . The device according to  claim 2 , wherein the mixing tool has a plurality of mixing organs, which are held at the wall bounding the mixing chamber in respective openings.  
   
   
       4 . The device according to  claim 3 , wherein at least one segment of the wall, at which mixing organs are held, is movable in a circumferential direction of the mixing chamber such that every mixing organ is moved along for mixing the media.  
   
   
       5 . The device according to  claim 4 , further comprising a toothing for driving the rotating segment, the toothing being engaged with a drive gear.  
   
   
       6 . The device according to  claim 1 , wherein the mixing tool has at least one mixing organ guidable into the mixing chamber through a corresponding opening of the plunger.  
   
   
       7 . The device according to  claim 6 , wherein the plunger is adapted to be set in rotation for mixing the media.  
   
   
       8 . The device according to  claim 1 , wherein the mixing tool has at least one mixing organ having a pin-shaped design.  
   
   
       9 . The device according to  claim 8 , wherein the pin-shaped mixing organ has at least one of a substantially square, rectangular and rhombic cross-sectional form.  
   
   
       10 . The device according to  claim 3 , wherein each of the at least one mixing tool is assigned one actuator for extending and retracting the mixing organs into and from the mixing chamber.  
   
   
       11 . The device according to  claim 10 , wherein the actuator and at least one mixing organ are connectible via a bayonet lock.  
   
   
       12 . The device according to  claim 1 , wherein the mixing tool is for mixing pastes, for one of (a) screen-printing methods and (b) coating methods.  
   
   
       13 . The device according to  claim 1 , wherein the at least two media are highly viscous media.